HD 80606 and HD 80607
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Ursa Major |
| HD 80606 | |
| Right ascension | 09h 22m 37.5769s |
| Declination | +50° 36′ 13.430″ |
| Apparent magnitude (V) | +9.00 |
| HD 80607 | |
| Right ascension | 09h 22m 39.7369s |
| Declination | +50° 36′ 13.945″ |
| Apparent magnitude (V) | +9.090 |
| Characteristics | |
| HD 80606 | |
| Evolutionary stage | main sequence |
| Spectral type | G8V |
| B−V color index | +0.765 |
| HD 80607 | |
| Evolutionary stage | main sequence |
| Spectral type | G8V |
| B−V color index | +0.828 |
| Astrometry | |
| HD 80606 | |
| Radial velocity (Rv) | 3.6 km/s |
| Proper motion (μ) | RA: +56.022 mas/yr Dec.: +10.331 mas/yr |
| Parallax (π) | 15.1439±0.0170 mas |
| Distance | 215.4 ± 0.2 ly (66.03 ± 0.07 pc) |
| Absolute magnitude (MV) | +5.02 |
| HD 80607 | |
| Radial velocity (Rv) | 3.3 km/s |
| Proper motion (μ) | RA: +52.656 mas/yr Dec.: +9.938 mas/yr |
| Parallax (π) | 15.1482 ± 0.0157 mas |
| Distance | 215.3 ± 0.2 ly (66.01 ± 0.07 pc) |
| Absolute magnitude (MV) | +5.11 |
| Details | |
| HD 80606 | |
| Mass | 0.9 M☉ |
| Radius | 1.1 R☉ |
| Luminosity | 0.9 L☉ |
| Surface gravity (log g) | 4.50±0.20 cgs |
| Temperature | 5,395 K |
| Metallicity [Fe/H] | 0.43±0.06 dex |
| Rotational velocity (v sin i) | 0.9±0.6 km/s |
| Age | 11.4 Gyr |
| HD 80607 | |
| Mass | 1.0 M☉ |
| Radius | 1.0 R☉ |
| Luminosity | 0.8 L☉ |
| Surface gravity (log g) | 4.52±0.15 cgs |
| Temperature | 5,420 K |
| Metallicity [Fe/H] | 0.38±0.06 dex |
| Rotational velocity (v sin i) | 1.4±0.4 km/s |
| Age | 8.1 Gyr |
| Other designations | |
| BD+51°1500, CCDM J09226+5036, WDS J09226+5036, STF 1341 | |
| HD 80606: HIP 45982, SAO 27230 | |
| HD 80607: HIP 45983 | |
| Database references | |
| SIMBAD | HD 80606 |
| HD 80607 | |
HD 80606 and HD 80607 are two stars comprising a binary star system. They are 215 light-years away in the constellation of Ursa Major. Both stars orbit each other at an average distance of 1,200 astronomical units. The binary system is listed as Struve 1341 in the Struve Catalogue of Double Stars; however, this designation is not in wide use and the system is usually referred to by the HD designations of its constituent stars. An extrasolar planet has been confirmed to orbit HD 80606 in a highly elliptical orbit.